Question

Rudolpho takes 12 minutes to run 6 times around a 400-meter track. Assuming he runs at a constant speed, how long does he take to run 1 kilometer?

Answer 1

5 minutes

Explanation:

1km is 1000m

12 minutes is 2400m or 2.4km

6 minutes is 1200m

3 minutes is 600m

1 minute is 200m

Answer 2

6 x 400 = 2400 metered in 12 minutes

2400 meters / 12 minutes = 200 meters per minute

1 kilometer = 1000 meters

1000 meters / 200 meters per minute = 5 minutes

Answer: 5 minutes